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Re: Inversion of the digital IO pins
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Originally Posted by Alan Anderson
They're not inverted in my experience, as either input or output. You might be thinking of the fact that they're internally pulled up to 5 volts, so a switch to ground reads as a logic 1 when it's open and a logic 0 when it's closed.
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I thought that a pull up floated high which meant that it will always read as a logic 1 unless you ground the signal pin
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